142191-75 is an SMB mini bulkhead jack connector with 75 ohm impedance, designed for use with RG-179/U cable. The connector features a gold-plated brass body and contact pin, with a Teflon insulator for reliable signal transmission. It includes a 10-32UNF-2A threaded interface with a 6.35mm hex nut for secure panel mounting, supporting a maximum panel thickness of 2.4mm. The crimped ferrule requires a hex crimp size of 0.128" and the contact pin uses a square crimp size of 0.7mm. This connector is ideal for RF applications requiring stable 75 ohm impedance matching in broadcast, video, and telecommunications equipment.